Hi guys,
I’m encountering this problem while developing my app.
I just installed the ionic native push notification plugin and the cordova phonegap push.
Notifications work but i can’t set the small icon

Well, the small icon is set always with the default app’s icon (that is not optimized for Android 5.0+ notifications, cause it’s not monochromatic).
So i’ve used this helper (http://romannurik.github.io/AndroidAssetStudio/icons-notification.htm) for generating good notification icons that i’ve called ic_notify.
These images are under the following path: /resources/android/ic_notify